320358664 has 16 divisors (see below), whose sum is σ = 601070400. Its totient is φ = 160073232.

The previous prime is 320358653. The next prime is 320358673. The reversal of 320358664 is 466853023.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397 + ... + 25315.

It is an arithmetic number, because the mean of its divisors is an integer number (37566900).

Almost surely, 2^320358664 is an apocalyptic number.

It is an amenable number.

320358664 is a deficient number, since it is larger than the sum of its proper divisors (280711736).

320358664 is a wasteful number, since it uses less digits than its factorization.

320358664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26532 (or 26528 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 320358664 is about 17898.5659760775. The cubic root of 320358664 is about 684.2458277619.

The spelling of 320358664 in words is "three hundred twenty million, three hundred fifty-eight thousand, six hundred sixty-four".